Cool old pics... I saw my first one back in the late sixties. My dad used to take us to the boat races when we were kids. I thought it was the coolest looking boat ever. When I went to buy my first boat in 1980, I wanted to buy one. I couldn't find one, so I ended up with a Hydra-Sports ski boat. Had it for 29 years. I was surfing the net one night in 2009 and came across the Allison Owners page. I started looking for a GT20. Found one in Knoxville and the rest is history. I still think they are one of the best looking boats in their class... People are surprised when I tell them how that design is.. Thanks for sharing the old pics, and I'll post as soon as get back on it.